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30231322310213 = 52182969994657
BaseRepresentation
bin1101101111110110001110…
…01110100011011001000101
310222001002022211102122221222
412313323013032203121011
512430302222002411323
6144144024443050125
76240066230522663
oct667730716433105
9128032284378858
1030231322310213
1196a6039351542
123483048810945
1313b3a55a7029b
147672bd363c33
153765bcec29c8
hex1b7ec73a3645

30231322310213 has 8 divisors (see below), whose sum is σ = 30325885525080. Its totient is φ = 30136899087360.

The previous prime is 30231322310201. The next prime is 30231322310219. The reversal of 30231322310213 is 31201322313203.

It can be written as a sum of positive squares in 4 ways, for example, as 935007773764 + 29296314536449 = 966958^2 + 5412607^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30231322310213 - 26 = 30231322310149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231322310219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34565420 + ... + 35429237.

It is an arithmetic number, because the mean of its divisors is an integer number (3790735690635).

Almost surely, 230231322310213 is an apocalyptic number.

It is an amenable number.

30231322310213 is a deficient number, since it is larger than the sum of its proper divisors (94563214867).

30231322310213 is an equidigital number, since it uses as much as digits as its factorization.

30231322310213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69996007.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 30231322310213 its reverse (31201322313203), we get a palindrome (61432644623416).

The spelling of 30231322310213 in words is "thirty trillion, two hundred thirty-one billion, three hundred twenty-two million, three hundred ten thousand, two hundred thirteen".

Divisors: 1 521 829 431909 69994657 36467216297 58025570653 30231322310213